Conveyer for segmental stereotype plates



W. HALL CONVEYER FOR SEGMENTAL STEREOTYPE PLATES Filed Nov. 7, 1925 5 Sheets-Sheet 2 LEEEEEEFE w. HALL coNvEYER Foa SEGMENTAL sTEREoTYP PLATES.

Dec. 13, 192.7.

Filed Nov. v, 1925 s sheets-sheet s Dec. 13, 1927.

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W. HALL 5 Sheets-Sheet 5 iled Nov. 7, 1925 CONVEYER FOR SEGMENTAL STEREOTYPE PLATES Dec. 13, 1927.

Patented Dec. 13, 1927.

UNITED STATES 1,652,989 PATENT OFFICE.

WILLIAM HALL, oF MINNEAPOLIS, MINNESOTA, AssIeNon or ONE-THIRD 'ro .Tosnrn E. MURPHY AND :JNE-THIRD '.ro GEORGE n. wnELD'oN, or MINNEAPOLIS, MINNE- SOTA.

CONVEYER FOR SEGMENTAL STEREOTm PLATES.

Application filed November 7,- 1925. Serial No. 67,551.

My present invention relates to a conveyer system intended for general use, but es eclally adapted for carrying stereotype p ates from an inspection table to printing presses on which the7 are to ybe mounted, i

To the above end, generally stated, the inL vention consists of the novel devices and combinations of devices hereinafter described a-nd defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referred to the drawin s:

Fig. 1 is a plan view o a printing press room in which the invention is installed, said invention aswell as several press units and other machines being digrammatically illustrated, the walls of said room being shown in section Fig. 2 is a view partly in elevation and partly in vertical section, taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a view partly in elevation and partly in vertical section, taken on the line 3 3 of Fig. 1;

Fig. 4 is a fragmentary plan view of the inspection table and the main conveyer, together with the driving connection from the automatic shaving machine to said main conveyer;

Fig. 5 is a fragmentary view partly in elevation and partly" in vertical section, taken on the line 5 5 of Fig. 4;

Fig. 6 is a vfragmentary plan view of the conveyer system at the combined elevator and transfer mechanism;

' Fig. 7 is a detail view with some parts sectioned on the line 7 7 of Fig. 6 and further illustrating a segmental stereotype plate on the main conveyer;

Fig. 8 is adetail view with some parts sectioned on the .line 8 8 of Fig. 6 and further illustrating a segmental stereotype plate on the transverse conveyer.

Fig. 9 is a fragmentary view Ipartly in elevation and. partly in vertical section, taken on the line 9 9 of Fig. 6 with some parts shown in different positions by means of broken lines;

Fig. 10 is a. fragmentary View partly in elevation and partly in central section, taken on the-line 10 10 ofFig. 6;

Fig. 11 is a fragmentary view in elevation' partly in plan and partly in section show- --ing the reversing clutch for the transfer mechanism, and also illustrating a wiring dia am for operating said clutch; and

ig. 13 is a, wiring diagram for the elevator and transverse conveyers.

The 'numeral 14 indicates a printing press room, and the numeral 15 indicates the walls thereof. The floor of the press room 14, at

one side thereof, is raised at 16, and mounted thereon isa single row of three press units indlcated by the numerals 17, 18 and 19. Formed in the floor of the press room 14, close to the raised floor section 16, are four arded manholes 20, as shown throng which poles 2l extend, and on which poles the press attendants may slide from said press room to the basement in which the rolls of paper for the presses are, y mounted Mounted on the floor of the press room 14, on the opposite side thereof from the presses and substantiall on a line between the press units, 17 an 18, is a Stereo# type plate casting machine -22 commercially known as double junior automatic plate. Directly in front of the casting machine 22 is an automatic shaver for the stereotype plates received from said casting machine, and which shaver is indicated as an entirety by the numeral 23 with the exception of its driven shaft 24. At the side of the automatic shaver 23', toward the presses, is an inspection table 25`on which the stereotype lates are placed after having been removed om the automatic shaver 23. Stereotype plates, as they appear in the several places in the drawings, are indicated by the numeral 26.

The parts thus far described have been illustrated simply for the purpose of showing the inventlon in operative relation thereto. f

Referring'inow in detail to the invention, the conveyer system, as shown, includes a main conveyer A, a combined elevator and transfer mechanism B, oppositely extended transverse conveyers C and D, and an upper transverse conveyer E located above the transverse conveyer D. The, main conveyer A is arranged to receive the stereotype plates 26 from the inspection table 25 and deliver the same onto the combined elevator and transfer mechanism B, and the transverse conveyers C, D and E are arranged to receive the stereotype plates 26 from said mechanism and deliver the same, respectively, onto receiving tables F, G and H.

y Said main 4conveyer A extends from the in' spection table transversely of the row of press units 17, 18 and 19 and the transverse conveyers C, D and E extend parallel thereto.

It will be noted that the tables F, G and H are arranged vto serve the press units 17, 19 and 18, respectively, and are located s ubstantially at the longitudinal center of each unit. The entire main conveyer A is driven from the shaft 24 of the automatic shaver 23 by a shaft 27 having two universal joints 28. The transfer portion of the mechanism B is driven from the main conveyer A at itscdelivery end, and the elevator of said mechanism is driven by an electric motor 29 located under the receiving end of the transverse conveyer C.

The combined elevator and `transfer mechanism B comprises a rectangular horizontally disposed skeleton frame 3()vv having at its corners four depending legs 31 mounted for vertical sliding movement in bearings 32 lon a bed plate 33 mounted on the raised floor section 16 directly over a pit 34 formed therein. Said mechanism B is raised and lowered by a jack comprising a vertical .screw 35 and a nut-acting beveled gear 36 mounted thereon. The upper end of the screw 35 is rigidly secured to thev frame 30, at the center thereof, and the beveled gear 36 is loosely journaled in a bearing on the bed plate 33. Meshing with the .beveled gear 36 is a pinion 37 on the armature shaft of the motor 29. i

The transfer proper comprises a plurality of laterally spaced horizontal rolls 38, journaled in bearings on the frame 30, that extend parallel to the direction of travel of the main conveyer A and transversely of the direction of travel of l the transverse conveyers C, D and E. The end portions of the transfer rolls 38 have circumferentially spaced longitudinally extended serrations 39 on which the segmental plates 26 rest, at their lon itudinal ed es, when delivered thereto. shaft 40 is journaled in bearings on the frame 30, outward of the ends of the transfer rolls 38 adjacent to the conveyer A, and has on one of its ends'a beveled gear 41 which meshes with two beveled gears 42 and 43 loosely journaled on a shaft 44 which extends parallel to the transfer rolls 38 and is journaled in bearings on said frame.- Keyed to the shaft 44 between the beveled gears 42 and 43, with freedom for sliding movement, is a clutch member 45 adapted to be moved into interlocking engagement with either one of two clutch mem ers 46 on the opposing faces of the beveled gears 42 and 43. A relatively large spur gear 47 on the opposite end of the shaft 44 from the beveled gears 42 and 43, meshes with the adjacent gear of a train of gears 48, certain of which are secured to the respective ends of the transfer rolls 38 and others of which are loosely journaled on the frame 30, and which train of gears rotates the transfer rolls 38 in the same direction.

The main conveyer A comprises two sections 49 and 50, the former of which travels over the inspection table 25, and the latter ofV which travels from said table to the combined elevator and transfer mechanism B. Said conveyer section 49 comprises two laterally spaced sprocket chains 51 arranged to run over pairs of sprocket wheels 52 and 53, the former of which are secured to a shaft 54 mounted vin hub-like members 55 journaled in bearings 56 on the end of the inspection table 25 adjacent to the automatic :shaver 23. The sprocket wheels 53 are sechain 51 are arranged' to run' in channel members 59 set into the top of the transfer "table 25 and support said sprocket chains so that they do not project above the top of said table. Transversely aligned longitudinally spaced pairs of upstanding lugs 60 are secured to the sprocket chains 51 and are arranged to engage one of the longitudinal edge portions of a stereotype late 26, when place on the inspection table 25 by an attendant at the 'time the same is removed from the automatic shaver 23, and slide the same longitudinally thereof to the conveyer section 50. The shaft 54 and hence the conveyer section 50 are driven from the shaft 27 by a pair of miter gears 61.

The conveyer section 50 includes a frame made up of a pair of laterally spaced channel bars 62, a pair of angle guard rails 63, which extend parallel to said channel bars and outward thereof, and crosstie bars 64 which rigidly connect said bars and rails. A pair of hinge members G5-are secured to the ends of the guard rails 63, at the delivery end of the conveyer section 50, and have longitudinally elongated eyes through which the shaft 40 extends and pivotally supports said conveyer section for raising or lowering movements with the 'combined l elevator and transfer mechanism B. A pair of longitudinally aligned short crosstie bars 66 connect the ends of the channel bars 62 and guard rails 63 at the inspection table 25 in pairs. The inner-ends of the crosstie bars 66 are curved outward toward the inspection table 25 and terminate in a pair of axially spaced hubs in which a shaft 67 is journaled. Mounted Von the shaft 67 between the hub of the crosstie bars 66 is a spacing sleeve 68. A pair of hub-like members 69 are secured to the ends of the shaft 67 for rotation therewith and afford stops to prevent outward axial movement of said hubs on the shaft 67. The shaft 67 has at its ends short square axial projections l 70 which areremovably mounted 1n correspondingl formed open seats 71 in the inner ends of t e hub members 57. To hold thc axial projections 70 in their seats 71 with the shaft 67 in axial alignment with the hubmembers 57, removable headed pins 72 are inserted through axial bores in said hub members, axial'projec-tions and shaft. Obviously, by drawing the pin outward to release the axial'projections 70, the respective end of the frame of the conveyer section 50 may be raised and said section turned into an inoperative position. as shown in Fig. 3.

The conveyer section 50 also. includes a' pair of sprocket chains 73 arranged to run over a pair of.sprocket wheels 74 keyed to the shaft 40 and a pair of sprocket wheels 75 formed with the hub members 69. The upper sections of the sprocket chains 73 are arranged to run inthe channel bars 62. Secured to the sprocket 'chains 73 are a plurality of transversely aligned longitudinally spaced upstanding lugs 76 arranged to engage one of the longitudinally edges of a stereotype plate 26 supported on said sprocket chains and cause the same to move therewith from the inspection table 25 to the combined -elevator and transfer mechanism B. The guard rails 63 will prevent endwise movement of a sterotype plate 26 on the sprocket chains 73 so that the same is delivered in its proper position to the transfer rolls 38. The under sections of the sprocket chains 73 are supported from a plurality of idle flanged wheels 77 on the shafts journaled in depending bearings on the guard rails 63.

From the conveyer section 50, a stereotype plate 26 is delivered onto a pair of horizontal rails 78 on'the frame 30 and which rails extend parallel to the transfer rolls 38. These rails 78.- extend slightly above the transfer rolls 38 and have at their end portions pairs of notches 79 and 80, the bottoms of which are below the upper faces of said rolls so as to permit the longitudinal edges of a stereotype plate 26 to rcst on said vrolls at their serrated surfaces 39. Formed with the rails 78 outward of the notches 80 are stops 81, and by reference to Fig. 10, it will be noted that the rails 78 at the inner sides of tlie notches 79 are heveled to afford cam surfaces 82.

Each transverse conveyer C, D and E is in the form of an endless sprocket chain 83,l

84 and 85, respectively, and which chains are arranged to run in the same vertical plane. The sprocket chain 83 is arranged to run over inner and outer sprocket wheels 86 and 87, res ectively, journaled in bearings on lateral y spaced A-fr'ames 88. The sprocket chains 84 and 85 run over inner and outer sprocket wheels 89 and 90, respectively, journaled in bearings on'end and intermediate laterally spaced side frames 91. Only the inner end sprocket wheels 89 and 90 and the inner end pair of frames 91 are shown.

The sprocket chains 83, 84 and 85, are supported on the bottoms of channel members 92, 93 and 94, respectively, for travelling movement in the direction of the arrows marked thereon in Fig. 9. The side flanges of the channel members 92, 93 and 94 are relatively low so that the sprocket chains 83, 84 and 85 .extend thereabove. The stereotype plates 26-are delivered endwise onto the transverse conveyers C, D and E from the combined elevator-` and transfer mechanism B and rest astridethe sprocketv chains 83, 84 and 85. On the internal surfacesl of the stereotype plates 26 are. axially spaced circumferentially extended grooves' or channels 26a with which the uneven surfaces of the sprocket chains 83, 84 and 85 engage and securely hold said stereotype plates for traveling movement with the conveyers C, D and E'. The channel member 92 is carried by end and intermediate cross frames 95, and the channel members 93 and 94 are carried by en-d and intermediate cross frames 96, only the inner one being shown. Idle sprocket wheels l97, journaled on the intermediate cross frames 95, and 96, vonly one of which is shown, support the lower sections of the sprocket chains 83, 84 and 85 during their return travel. Pairs of angle guard rails 98, carried on outwardly projecting shoulders 98 on the legs of the cross frames 95 and 96, are so arranged that the lower'longitudinal edges of the stereotype plates 26 just clear the same as theyv are carried by the conveyers C, D and E and prevent said plates from shifting on thc. sprocket chains 83, 84 and 85.

The transverse conveyor C is driven by an electric motor 99having on its armature shaft 100 a spur gear 101 which meshes with a spur pmion 102 axially secured for rotation with the sprocket wheel 87.

The following connections are provided for driving the transverse conveyers D and E from the transverse conveyer C, to wit: A sprocket chain 103 runs over a sprocket wheel 104 axially secured in respect to the sprocket wheel 86 and a lower sprocket wheel 105 journaled on the inner A-frames 88. A sprocket chain 106 runs over a sprocket wheel 107 on the same shaft for the sprocket wheel 105 and over a sprocket wheel 108 j ournaled on' the inner cross frames 96. On the same shaft with the sprocket wheel 108 is a spur gear 109 which meshes with a spur gear 110 journaled on the inner side frames the inspection table 25. The solenoid is' 91, and a sprocket chain 111 runs over a s rocket wheel 112 on the same shaft with t e spur gear 110 land sprocket wheels 113 Y and 114 on the shafts of the sprocket wheels for the transfer rolls 38 from the main conveyer A is normally held in neutral position by a shipper lever 116 and two opposing" coiled springs 117. For shifting the clutch 45 from'neutral position into engagement lwith either one of fthe clutch members 46 and thereby connect the respective gear either 42 or 43 to the lshaft 44, I provide a' solenoid, the coils of which are indicated by the numeral 118 and their cores 119 are secured `to the shipper lever 116. The springs 117 encircle the cores 119 and are compressed between the shipper lever 116 and the coils 118.` The circuit for each coil 118 is indicated by the numeral 120 and the battery therefor is indicated by the numeral 121. Each of the circuits 119 is normally broken by a manually operated switch 122 located on one of the building posts 15a at mounted in a casing` 123.

The motor 29 for. raising or lowering the combined elevator and transfer mechanism B is of the reversible type and in its several electric circuits are normally open manually operated switches 124 and 125,- on the post 15, a field 126, commutator 126', a resistance 127, normally closed snap switches 128 and 129 and a normally open switch 130, a main motor control relay 131, a down control relay 132, an up control relay 133, a pair of control fuses 134 and 135, and a pair of control fuses 136 and 137. The switch 124 has two fixed contacts 138 and 139, and the switchv 125 has two fixed contacts 140 and 141. A wire 142 leads from the fixed contact 138 to one of the contacts of the switch 129; a wire 143 leads from the other contact of said switch 129 to one side of the up control relay 133; 'a wire 144 leads from the other side of said relay 133 to one side of the down control relay 132;` a wire 145 leads from the other side of said down control relay to one of the contacts of the snap switch 128; a wire 146 leads from the other contact of the switch 128 to the switch contact 140; and a wire 147 leads from the switch contact 141 shunted as illustrated.

A wire 148 leads'from the switch contact 139 to one side of the main motor control relay 131; a wire 149 leads from the other side of the main motor control relay 131 to the control fuse 136; a wire 150 connects the control fuses 134 and 136'; a wire 1 51 leads from the control fuse 134 to one side of the field 126; a Wire 152 leads'from the other side of the field 126 to the control fuse 135; a wire 153 connects the control fuses 135 and 137 and a Wire 154 leads from the control fuse 137 to the Wire 144.

The control relays 131, 132- and 133 are of the clapper type and the main motor control relay 131 has a pair of contacts 155 and 156 and a pair of contacts 157 and 158. The down control relay 132 has a pair of contacts 159 and 160, and a pair of contacts 161 and 162, and the up control relay'133 has a pair of contacts 163 and 164 and a pair of contacts 165 and 166. AWire 167 connects the wire 150 to the contact 156; a wire 168 connects the wire. 153 to the contact 158; a wire 169 connects the contacts 160 and 164; a wire 170 connects the contact 157 to the wire 169; a wire 171 connects the contact 162 to the contact 166; a wire 172 connects the contact i 155 to the wire 171; a wire 173 connects the contacts 159 and 165; a wire 174 connects the contacts 161 and 163; a wire 175 leads from one side of the commutator 126 to the contact-159; a wire 176 leads from the other side of said commutator to the contact 161; a wire 177 leads from the wire 17 6 to one side of said resistance 127 and a Wire 178 leads from the resistance to one of the contacts of the switch 130; and a wire 179 leads from the other contact of said switch to the contact 159.

The wires 150,151 and 167 are all connected to the same side of the control fuse 134 and the negative line wire 134a leads to the'other side of said fuse. The wires 152, 153 and 168 are all connected to the same side of the control fuse 135 and the positive line wire 135a leads to the other side of said fuse.

A trip member 180 on the combined elevator and transfer mechanism B is provided for opening the snap switches 128 and 129.

The circuit for the motor 99 is indicated by the numeral 181 and which circuit is normally broken by a manually operated switch 182 on the post 15a.

When the combined elevatorand transfer mechanism B is down, the same is in position to receive a stereotype plate 26 from the conveyor A, and its trip member 180 is holding the switch 128 open. As previously stated, the conveyer A is driven from the automatic shaver 23 and the transverse conveyers C, D and E are driven from the notor 99 which is started or stopped by the switch 182. As a stereotype plate 26 is removed from the automatic shaver 23, it is placed on the Inspection table 25, and after being passed by the inspector, is placed transversely of the conveyer chains 59 to be engaged by the lugs 60 on said chain and moved thereby over said table and onto the conveyer chains .7 3. If the stereotype plate 26 isto be delivered to one of the transverse conveyers C or D, the inspector closes one of the switches- 122, depending in which direction the rolls 38 are to be rotated, to set the clutch 45 and drive said rolls from the conveyer A. From the conveyer chains 73, the stereotype plate 26 is delivered onto the rails 78 and slid thereon by said chains over the rolls 38 until its longitudinal edge portions drop into the notches 79 and 80 and onto the serrated ends 39 of the rolls 38. In case the stereotype plate 26 is moved onto the rails 78 with .such force that it passes beyond the notches 79 and 80, the same will engage the sto s 81 and be returned on the gails 78 to sai notches by the cam surfaces It will be noted that the tables F, G and H are inclined away from the transverse conveyers C, D and E, respectively. If the stereotype plate 26 is to be delivered to the press unit 17, the inspector closes the proper switch 122 to operate the clutch 45 and cause the rolls 38 to be rotated in a direction to deliver said stereotype plate onto the conveyer C. At the delivery end of this conveyer 'C,4the stereotype p ate 26 will be discharged onto the inclined table F. If the stereotype plate 26 is to be delivered to the press unit 19, the inspector closes the other switch 122 to operate the clutch 45 and cause the rolls 38 to be rotated in a direction to deliver said plate onto the conveyer D. At the delivery end of the conveyer D, the stereotype plate 26 is dishcharged onto table G or 1f the stereotype plate 26 is to be delivered to the press unit 18, the inspector raises the combined elevator and transfer mechanism B and the connected end of the conveyer A by closing the switch 124 to operate the motor 29, and he also closes the switch 122, which will operate the clutch 45 and drive the rolls 38 in the direction of travel of the conveyer B. During the upward movement of the combined elevator and transfer mechanism B, the trip member 180 will release the snapswitch 128 and permit the same to close and thereafter said trip member will engage the snap swltch 129 and open' the same and thereby break the circuit to stop said mechanism with the rolls 38 in their proper relation to the conveyer E so that the stereotype plate 26 will be delivered by said rolls onto the conveyer E. At the delivery end of the conveyer E, the stereotype plate 26 will be delivered onto the table H. 'f c To lower the combined elevator and transfer mechanism B, the inspector opens the switch 124 and closes the switch' 125 to start and reverse the motor 29. During the initial downward movement of the mechanism B, the-strip member 180 releases the snap switch 129 and permit the same to close and thereafter engage the snap switch 128 can control the movement of a stereoty e plate 26 from the time it leaves said tab e until its delivery onto one of the tables F, G or H, depending on the press unit on which it is to be used. By the use of the above described conveying system, a stereotype 26 may be delivered to the press unit for which it is intended without an error, and at the same time save a large amount of laborious work.

It may be assumed that normally both switches 124 and 125 are open, and that the combined elevator and transfer mechanism B is at its uppermost position as illustrated in Fig. 13, and the switch 129 is tripped open by the trip member 180 on said mechanism.'

The switch 128 is tripped into closed position during the upward travel of the elevator and transfer mechanism B. The operation to cause said elevator mechanism B to travel downward is as follows:

Switch 125 is manually closed'to contactsV 141 and-140, starting from the main source of current supply wire 1343, fuse 134, wire 150, fuse 136, wire 149, main control relay 131, wire 148, shunt wire 147, contact 141, switch 125, contact 140, wire 146, switch 128, wire 145, down control relay 132, wire 154, fuse 137, wire 153, fuse 135, wire 135% vThe circuit thus described has closed contacts 155, 156 and contacts 157 and 158. of the main control relay. Also closing contacts 159,160 and contacts 4161 and 162 of the down control relay.

The closing of said contacts in the main control relay 131 and down control relay 132 reverses the current through the armature 126', to wit:

From source wire'167, contacts 156 and 155, wire l172, wire 171, contacts 162, 161,

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wire 176, armature 126', wire 175, contacts y 159, 160, wire 169, wire 170, contacts 157 and 158, wire 168 to source.

IField 126 is charged at all times to provide a starting torque on motor 29,. to wit: from source wire 152, iield'126, wire 151 to source.

Main control relay contacts 155, 156, 157, 158 and down control relay contacts 159, 160, 161, 162, 163, 164, 165, 166, when at rest, are broken, and no circuits thus related to said contacts are energized. l

- It will be noted that the switch 130, dia- Vgrammatically shown, is automatically associated with main control relay 131, and when said contacts 155, 156, 157 and 158 are made, the switch is broken and effecting no dynamic resistance circuit through the terminals of the armature 126 of the motor 29,

When said elevator and transfer mechanism B has completed its downward travel the tri member 180 on said mechanism automatica ly trips said switch 128, thus breaking the circult to the clapper type relays 131 land 132 and vtheir respective contacts, thus causing the switch 130 to automatically close, eifectin a dynamic resistance through the termina s of the armature field 126 of said motor 20, to wit:

From terminal of field 126, wire 176, shunt wire 177, resistance 127, lwire 178 to switch 130. `Wire 179, wire 175, common to contact 159, to terminal of field 126. At this time the armature is idlin in res ct to its momentum, thus cutting nes o force and pulling a load, causing said elevator and transfermechanism B to stop.

Switch 129 is tripped closed at the end of the upward travel of said elevator and transfer mechanism B by the trip member 180 on said mechanism, and the switch 128 .has been tripped o en in the course of the upward travel of t e transfer mechanism. The operation to cause said elevator mechanism B to travel upward is as follows:

Switch 124 is manually closed, as indicated in dotted line osition in Fi 13, and switch 125 is manually broken. e circuit thus made is as follows: from source wire 134, fuse 134, wire 150, fuse 136, wire 149, main relay 131, wire 148, contact 139, switch 124, contact 138, wire 142, switch 129, wire 143, up control relay-133, wire 144, wire 154 to fuse 137, wire 153,\fuse 135 to source wire 135".

The closing of said contacts in the main control relay 131 and up control relay 133 reverses the current through the armature 126', to wit: from source wire 134, fuse 134, wire 167, contacts 156 and 155, wire y. Veyer.

common 172, wire 171, contacts 166, 165, wire 173, common on contact 159, wire 175, field 126', common on contact 161, wire 174, contact 163 vand 164, wire` 170, contacts 157, 158, wire 168, fuse 135 to source wire 135. L The dynamic resistance in field 126 of the motor 29 is vice versa as described in the operation of the downward travel of the elevator and transfer mechanism B.

What I claim is: 1. The combination with a main conveye and a transverse conveyer, of transfer mechanism forming a connection between said two conveyers, said transfer mechanism comprising rails onto which objects are delivered from the main conveyer and rollers arranged to receive objects from said rails and deliver the same to the transverse con- 2. The structure definedy in claim 1 in which the rails of the transfer mechanism extend between the` rollers of said transfer mechanism.

Lacasse 3. The combination with a main conveyer and a transverse conveyer, vof transfer mechanism forming a connection between said two conveyers, means for operating the transfer mechanism in the direction of travel of the transverse conveyer, an eleva- 'tor for raising or lowering said mechanism, and driving means for said two conveyers.

4. The combination with a main conveyer and two transverse conveyers located the oneabov the other, of an elevator for raising or lowering the delivery end of the main conveyer, transfer mechanism on the eleva.- tor forming a connection between the main conveyer and either one of the two transverse conveyers, means for operating the transfer mechanism, and driving means for said' two transverse conveyers.

5. The combination with a main conveyer and two transverse conveyers located the.

one above the other, of anelevator for raising or lowering the deliveryv end of the main conveyer, transfer mechanism on the elevator forming a connection between the main conveyer and either one of the two transverse conveyers, means for operating the transfer mechanism, means for operating the elevator, and automatic means arranged to be actuated by the elevator to stop the same in either a predetermined up or down position.

6. The combination with a main conveyer and two transverse conveyers located the one above the other, of an elevator for raising or lowering the delivery end of the main conveyer, transfer mechanism on the elevator forming a connection between-the main conveyer and either one of the two transverse conveyers, means for voperating the transfer mechanism, a reversible electric motor for raising or lowering the elevator, and automatic means arranged to be actuated by the elevator for breaking the ciri cuit of said motor and stopping the elevator in either a predetermined up or down position.

7. The structure defined in claim 6 in further combination with automatic means in said circuit for retarding the motor before the complete stop ofthe elevator. 4

8. The structure defined in claim 1 in which the rails of the transfer mechanism extend between said rollers and above the y cluding rails on which obiect's are moved byl said traveling means an rollers arranged to receive objects from the rails of the transfer mechanism and deliver the same to the transverse conveyer.

10. The combination with a main conveyer and two other conveyers, of transfer mechanism forming a connection with the main conveyer or either of said other two conveyers and including rolls extending parallel to the direction of ti'avel of the main conveyer,- a pair of rails extending parallel to the rolls, means for `drivingr said conveyers, and means for driving the rolls.y

11. The combination with a main conveyer, two transverse conveyers extending in opposite directions and a third transverse conveyer located above one of said two transverse conveyers, of an elevator for raising or lowering the delivery end of the main conveyer, reversible transfer mechanism on the elevator forming a connection between any one of the several transverse conveyers, means for reversing the transfer mechanism and operating the same in the direction of travel of any one of the transverse conveyers, and driving means for the several conveyers.

12. The combination with a main conveyer and a transverse conveyer, of transfer rolls forming a connection between said two conveyers, said rolls extending parallel to the direction of travel of-the .main conveyer, means for driving the transfer rolls in the direction vof travel of the transverse conveyer, driving means for the conveyers, a pair of rails extending parallel'tov and above the transfer rolls and forming a direct connection with the main conveyer, said rails having open spaces exposing said rolls.

13. The combination with a main conveyer and two oppositely extended transverse conveyers, of transfer rollsv forming a connection between the main conveyer and either of the two transverse conveyers and extending parallel to the direction of travel of the main conveyer, means including a clutch for driving the transfer rolls in the direction of travel of either of the transverse conveyers and for reversing the same, electro-magnetic means for operating the clutch, and driving means for said conveyers.

:14. The combination with a main conveyer and upper and lower conveyers, of an elevator, transfer mechanism on. the 'elevator and forming a connection between tlie main conveyer and either of said upper or lower conveyers, means for raising or lowering the elevator, independent driving means for the main conveyer and the upper and lower conveyers, means for operating the transfer mechanism including' a clutch,

" and manually operated means at a local stationfor independently starting or stopping the driving means .for the upper and lower conveyers and the elevator and foroperating the clutch.

15. The structure defined in claim 14 in` which the clutch is reversible.

16. The combination with a local table, of'

l conveyer and either one of the transverse conveyers, means for raising or lowering the elevator, independent driving means for the main conveyer and the two transverse conveyers, and means for operating the transfer mechanism.

17. The structure defined in claim 16 in further combination with manually operated means at the-local table for independently starting or stopping the driving-means for the two transverse conveyers, the elevator and the transfer mechanism.

18. The combination with two conveyers, of transfer mechanism forming a connection between the two conveyers, one of said conveyers comprising a pair of rails the delivery ends of which are substantially at the same elevation as the transfer mechanism and traveling means for moving objects on said rails and to the transfer meehanism,.the other of said conveyers comprising traveling means at an elevation materially abover'the -transfer mechanism for carrying and mov-y ing objects delivered thereto by the transfer mechanism and a pair of guide rails for said objects substantially at the same elevation as' the transfer mechanism.

19. A conveyer comprising a channel meming objects on said rails and to the transfer mechanism, said transverse conveyer comprising traveling means, the recelving end of lwhich is at an' elevation materially above the transfer mechanism for carrymg the objects delivered thereto bythe transfer mechanism. V

21. The combination with a table having ,in its top a pair of'laterally spaced'ehannels',

of a main conveyer comprising a receiving section and a delivery section, said receiving section comprising a pair of -sprocket chains arranged to travel in-the channels in said table top, the delivery section of said main conveyer comprising a pair of later- .i

veyer being hingedly mounted on the elevator, the inner end of the vdelivery section of I the main conveyer having separable interlocking engagement with the driving connection for the receiving section of said main conveyer.

In testimony whereof I aix my signature.

WILLIAM HALL. 

